Refrigerating truck



June 6, 1939. M, H, HQVEY I 2,161,050

REFRIGERATING TRUCK Filed July 28, 1937 FIG. l

l I" /I I INVENTOR MARK HOVEY AT TORNE Y S I 35 so that the unit can Patented June 6, 1939 PATENT OFFICE REFRIGERATING TRUCK. Mark H. Hovey, Stoughton, Wis.

Application July 28, 4 Claims.

This invention appertains to refrigeration, and more particularly to refrigerators or refrigerating trucks.

As is well known, erating unit is reducedby the collection of frost or ice thereon, and, consequently, these units have to be periodically defrosted. Much dimculty is. experienced in defrosting these and generally the temperature of the entire refrigerator or truck has to be raised.

One of the primary objects of my invention is the provisionof novel means refrigerator or truck, and novel means for mounting the unit in the refrigerator or truck, where- 5 by the unit can be readily swung out of the refrigerator or truck and rapidly defrosted without materially raising 'thetemperature of the refrigerator or truck.

Another salient object of my invention is the 2 provision of .a refrigerating unit of the Hold.-

Over type mounted on a post adjacent to an opening in the refrigerator or truck body, whereby the unit can be swung out of the refrigerator or truck, the feed and return pipes for the unit 5 being arranged adjacent to the post, whereby desirable connections can readily be had between the unit and the pipes.

A further impo'tant object of my invention is to provide a sec or shaped unit mounted for 30 swinging movement in a horizontal plane on a supporting post, with means in the truck for slidaloly supporting the edge of the unit remote from the post, the unit being movable through a normally closed opening exteriorly of "the truck, be readily and easily defrosted by a hose or the like.

A still further object of my invention is to provide novel means for rapidly defrosting a refrigerating unit of the above character, which 4 will he durable and efficient in use, one that will be simple and easy to manufacture, and one which can be incorporated with a refrigerating truolr at a small cost.

With these and other objects in view, the in- 45 vention consists in the novel construction, ar-

rangement, and formation of parts, as will he hereinafter more specifically described, claimed, and illustrated in the accompanying drawing, in

which drawing: g

Figure l is a fragmentary horizontal section through a refrigerating truck, with my novel unit mounted therein, the section being taken substantially on the line l-i of Figure 2, looking in the direction of the arrows.

55 Figure 2 is a fragmentary,

vertical sectional the emciency of the refrigunits,

for forming the v 1937', Serial No. 156,179

(Cl. 62-89) I view through a refrigerating truck, showing the unit mounted therein, the view beingtaken substantially on the line 2-2 of Figure 1, looking in the direction of the arrows.

Figure 3 is a detail, fragmentary, vertical sectionai view illustrating a modified form of means for mounting the unit and for supplying the refrigerating fluid thereto.

Figure 4 is a view similar to Figure 3, illustrating another modified form of connecting the feed and return pipes with the unit.

Figure 5 is a horizontal sectional view taken substantially on the line 5-5 of Figure 4, looking in the direction of the arrows.

Referring to the drawing in detail, wherein similar reference characters designate corresponding parts throughout the several views, the letter T generally indicates arefrigerating truck, and U a refrigerating unit therefor. The truck '1 can be of any preferred construction or form, and the walls thereof are insulated manner.

In accordance with my invention, 1 form an elongated opening it in one wall it of the truck, and this opening is normally closed by ahinged door it.

Within the truck, adjacent to the hinges of the door it, I arrange a vertical post 63. This post can be mounted in suitable sockets it carried by the top and bottom walls of the truck body. Rotatably' mounted on the post it is a hearing sleeve it, and this sleeve can rest against a hearing collar it secured to the post. The rotatable in the usual sleeve it carries supporting bracket arms til,

which are riveted or otherwise secured to the sector-shaped unit U. The unit TJ' includes an inner coil 9 and a closed casing it for the brine. The outer arcuate edge of the casing it can have formed thereon an outstanding flange it. This flange it constitutes a track for engaging anti-friction rollers it supported by brackets 2i depending from the top'wall of the truck. By supporting the unit on the post 52, the unit can he bodily swung from inside the truck through the door opening it when the door it is swung to an open position.

After the unit is swung out of the truck, the

same can be quickly defrosted by a hose or the I mount feed and return pipes 23 and 2t adjacent to the post 03 and use flexible couplings or pipes 25 to connect the feed and return pipes with the terminals of the cooling coil 9. By this arrangement and construction, the flexible couplings or pipes only have to be formed .very short, and the unit does not have to be discon nected from the feed and return pipes.

I can use various other means for connecting the unit with feed and return pipes, and in Figure 3 I have illustrated one preferred modified form of connection. In this form I utilize a hol low post 38, which is rotatably mounted within upper and lower bearings carried by the top and bottom walls of the truck. The post has rigidly secured thereto a sleeve 32, and this sleeve carries the unit. A plug or the. like 33 is utilized for dividing the post into independent chambers, and feed and return pipe sections 3% and 35 extending from the unit lead into the independent chambers. The outer ends of the pipe rotatably receive the feed and return pipes 35 and 3? from the compressor (not shown). In this construction, the use of flexible pipes or couplings is entirely eliminated.

In Figures 4 and 5, I have shown a still further form of connection. In this form a hollow post id is utilized, and the same is rigidly mounted in supporting sockets ill secured to the upper and lower walls of the truck. The. post has rotatably mounted thereon a bearing sleeve 62 to which is attached a unit 63 carrying-the coil dd. Extending into the hollow post are feed and return pipes t5 and it, and these. pipes are connected by swinging couplings d?! with the feed and return terminals of the cooling unit or coil. The post 50 can be slotted, as at 38, for receiving the terminals ofv the coll.

From the foregoing description it can be seen that I have provided an exceptionally simple and. durable means for bringing about the quick and emcient defrosting of cooling units.

hanges in details may be made without departing from tion, but what I claim as new is:

the spirit or the scope of my inven- 1. In a device of the class described, an insulated body having a narrow elongated opening, a cooling unit hingedly mounted in the body ad- Jacent to one end of the opening and movable through the opening into and out of said body, said cooling unit having inlet and outlet termi nals of the unit being arranged adjacent to the hinge point thereof, and feed and return pipes for the cooling fluid arranged adjacent to said terminals and operatively connected therewith. A 2. In a device of the class described, an insulated body having a door opening and a hinged door normally closing said opening, a supporting post, a'bracket rotatably mounted on said post, a cooling unit rigidly secured to the bracket, means slidably supporting the unit at a point remote from the post, said unit being movable into and out of the body through said opening, said cooling unit having inlet and outlet terminals disposedadjacent to the post, feed and return pipes for cooling fluid disposed adjacent to the post, and flexible units connecting the pipes with the terminals.

3. In a device of the class described, an insulated body having an opening, and a door normally closing said opening, a rotatable hollow post mounted within said body adjacent to one end of the door opening, means dividing the post into a pair of chambers, a cooling unit mounted on the post and movable therewith, said unit being movable into and out of the body through the opening, said cooling unit having inlet and outlet terminals communicating with the chambers, and stationary feed and return pipes leading into said chambers.

4. In a device of the class described, an insulated body having a narrow elongated opening, a supporting post within said body adjacent to one end of the opening, a cooling unit mounted on thepost for swinging movement in the body through said elongated opening, and a door for normally closing said opening.

MARK H. HOVEY. 

